=Electronics Hardware Questions=

A2:
A device draws higher current when temperature gets lower.
We know from VLSI basics that a current through a MOS transistor depends on 2 parameters:
Vt - threshold voltage ;
K - coefficient of electron mobility and a device geometry aspect.
Both Vt and K are temperature sensitive.
The magnitude of Vt decreases by 2mV for every 1 degree C rise in temperature.
This decrease in Vt correspondingly increases drain current.
However, K - decreases with temperature and its effect is a dominant one.
This may sound strange, since we remember from physics that electron mobility increases with temperature.
Yes, the chaotic electron mobility increases while interfering with direct current flow.